Παραπομπή σε μορφή APA (7η εκδ.)

Gibbons, J. (1887). Envelope and Calling Card, To: Stephen Farrelly, Esquire From: "James Cardinal Gibbons," January 3, 1887.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Gibbons, James. Envelope and Calling Card, To: Stephen Farrelly, Esquire From: "James Cardinal Gibbons," January 3, 1887. 1887.

Παραπομπή σε μορφή MLA (8th εκδ.)

Gibbons, James. Envelope and Calling Card, To: Stephen Farrelly, Esquire From: "James Cardinal Gibbons," January 3, 1887. 1887.